CORNER STONE

Name: CORNER STONE
Address: WINONA, 559876573, US

NPPES National Provider RegistryWINONAFormed 10 years ago

CORNER STONE is an active Federal business entity, first registered with NPPES National Provider Registry on July 14, 2016. An active contractor license is on file with CSLB (CA). No federal exclusion record was found as of the last data import.

In business since

2016

Registered Jul 14, 2016

Legal status

Not available

NPPES National Provider Registry

Contractor license

Active

CSLB (CA)

SAM.gov exclusions

None found

No match found in dataset

Matched records

Each connected record is a separate government filing RecordGraph matched to this business. Click a record to see it below.

Business registration

Official state record on file with Federal

Legal business name: CORNER STONE
State: Federal
Formed: July 14, 2016 — Formed 10 years ago
Filing number: 1821441734
Federal UEI: 1821441734SAM.gov →
Location: WINONA 559876573

Officers & Directors

People listed on official state filings for this business.

Mary Helen OlsonCeo

Source: NPPES National Provider Registry bulk filing data · Observed 2026 · Officer lists are not available on the Federal SOS online portal — sourced from official state filing extracts.

Contractor licenses

Issued by the state — required to legally perform work

License #	Classification	Status	Board	Issued	Expires
1036284	Flooring and Floor Covering Contractor, Tile (Ceramic and Mosaic) Contractor	ACTIVE	CSLB (CA)Contractors State License Board — CaliforniaVerify ↗	Feb 27, 2018	Feb 29, 2028

Verify licenses programmaticallyAccess license status, board data, and entity records via the RecordGraph API.

See API docs →

Where this information comes from

Data source: NPPES National Provider Registry
Data observed: Imported 2026
RecordGraph record ID: 72081244
Coverage: Federal — complete

Not a background check service. This information comes from public government records and may not be used for employment decisions, tenant screening, credit decisions, or any other purpose covered by the Fair Credit Reporting Act (FCRA). "No result found" does not mean no record exists — coverage varies by state. Nothing on this page is a finding of wrongdoing.

← Back to search